<template>
  <Menu
    :selectedKeys="selectedKeys"
    :defaultSelectedKeys="defaultSelectedKeys"
    :mode="mode"
    :openKeys="getOpenKeys"
    :inlineIndent="inlineIndent"
    :theme="theme"
    @open-change="handleOpenChange"
    :class="getMenuClass"
    @click="handleMenuClick"
    :subMenuOpenDelay="0.2"
    v-bind="getInlineCollapseOptions"
  >
    <template v-for="item in items" :key="item.path">
      <BasicSubMenuItem :item="item" :theme="theme" :isHorizontal="isHorizontal" />
    </template>
  </Menu>
</template>
<script lang="ts">
import type { MenuState } from './types';
import { computed, defineComponent, unref, reactive, watch, toRefs, ref } from 'vue';
import { Menu } from 'ant-design-vue';
import BasicSubMenuItem from './components/BasicSubMenuItem.vue';
import { MenuModeEnum, MenuTypeEnum } from '@/enums/menuEnum';
import { useOpenKeys } from './useOpenKeys';
import { RouteLocationNormalizedLoaded, useRouter } from 'vue-router';
import { isFunction } from '@/utils/is';
import { basicProps } from './props';
import { useMenuSetting } from '@/hooks/setting/useMenuSetting';
import { REDIRECT_NAME } from '@/router/constant';
import { useDesign } from '@/hooks/web/useDesign';
import { getCurrentParentPath } from '@/router/menus';
import { listenerRouteChange } from '@/logics/mitt/routeChange';
import { getAllParentPath } from '@/router/helper/menuHelper';

export default defineComponent({
  name: 'BasicMenu',
  components: {
    Menu,
    BasicSubMenuItem,
  },
  props: basicProps,
  emits: ['menuClick'],
  setup(props, { emit }) {
    const isClickGo = ref(false);
    const currentActiveMenu = ref('');

    const menuState = reactive<MenuState>({
      defaultSelectedKeys: [],
      openKeys: [],
      selectedKeys: [],
      collapsedOpenKeys: [],
    });

    const { prefixCls } = useDesign('basic-menu');
    const { items, mode, accordion } = toRefs(props);

    const { getCollapsed, getTopMenuAlign, getSplit } = useMenuSetting();

    const { currentRoute } = useRouter();

    const { handleOpenChange, setOpenKeys, getOpenKeys } = useOpenKeys(menuState, items, mode as any, accordion);

    const getIsTopMenu = computed(() => {
      const { type, mode } = props;

      return (type === MenuTypeEnum.TOP_MENU && mode === MenuModeEnum.HORIZONTAL) || (props.isHorizontal && unref(getSplit));
    });

    const getMenuClass = computed(() => {
      const align = props.isHorizontal && unref(getSplit) ? 'start' : unref(getTopMenuAlign);
      return [
        prefixCls,
        `justify-${align}`,
        {
          [`${prefixCls}__second`]: !props.isHorizontal && unref(getSplit),
          [`${prefixCls}__sidebar-hor`]: unref(getIsTopMenu),
        },
      ];
    });

    const getInlineCollapseOptions = computed(() => {
      const isInline = props.mode === MenuModeEnum.INLINE;

      const inlineCollapseOptions: { inlineCollapsed?: boolean } = {};
      if (isInline) {
        inlineCollapseOptions.inlineCollapsed = props.mixSider ? false : unref(getCollapsed);
      }
      return inlineCollapseOptions;
    });

    listenerRouteChange(route => {
      if (route.name === REDIRECT_NAME) return;
      handleMenuChange(route);
      currentActiveMenu.value = route.meta?.currentActiveMenu as string;

      if (unref(currentActiveMenu)) {
        menuState.selectedKeys = [unref(currentActiveMenu)];
        setOpenKeys(unref(currentActiveMenu));
      }
    });

    !props.mixSider &&
      watch(
        () => props.items,
        () => {
          handleMenuChange();
        }
      );

    async function handleMenuClick({ item, key }: { item: any; key: string; keyPath: string[] }) {
      const { beforeClickFn } = props;
      if (beforeClickFn && isFunction(beforeClickFn)) {
        const flag = await beforeClickFn(key);
        if (!flag) return;
      }
      emit('menuClick', key, item);

      isClickGo.value = true;
      // const parentPath = await getCurrentParentPath(key);

      // menuState.openKeys = [parentPath];
      menuState.selectedKeys = [key];
    }

    async function handleMenuChange(route?: RouteLocationNormalizedLoaded) {
      if (unref(isClickGo)) {
        isClickGo.value = false;
        return;
      }
      const path = (route || unref(currentRoute)).meta?.currentActiveMenu || (route || unref(currentRoute)).path;
      setOpenKeys(path);
      if (unref(currentActiveMenu)) return;
      if (props.isHorizontal && unref(getSplit)) {
        const parentPath = await getCurrentParentPath(path);
        menuState.selectedKeys = [parentPath];
      } else {
        const parentPaths = await getAllParentPath(props.items, path);
        menuState.selectedKeys = parentPaths;
      }
    }

    return {
      handleMenuClick,
      getInlineCollapseOptions,
      getMenuClass,
      handleOpenChange,
      getOpenKeys,
      ...toRefs(menuState),
    };
  },
});
</script>
<style lang="less">
@import url('./index.less');
</style>
